Illuminating device for dial telephones



Feb. 18, 1930. H|TT 1,747,976

ILLUMINATING DEVICE FOR DIAL TELEPHONES Filed March 22, 1929 3144x211 fez Genevieve Yffitt short circuiting Patented Feb. 18, 1930 GENEVIEVE YOUNG HITT, OF NEW Y ORK, N. Y.

ILLUMINATING DEVICE FOR DIAL TELEPHONES Application filed March 22, 1929. Serial No. 349,176.

This invention relates to means for illuminating the dial in dial telephones.

An objectof theinvention is to provide illaminating means for dial telephones in circuit with the telephone wire itself. a

A further object is to provide means for the illuminating means when not desired to ave it illuminate the dial.

Further objects and advantages will become apparent as theidescription proceeds.

eferring to the accompanying drawings, which are made a part hereof, and on which similar reference characters indicate similar parts,

The figure is a view in elevation of a dial telephone with parts broken away to show de tails of the illuminating elements.

In the drawing numeral 10 indicates the neck or body portion of a telephone instrument having the dial 11 mounted on its base Mounted in a recess in the neck of the telephone is an insulating block 12 having a bindingpost l3 embedded in one end and having a resilient contact element 14 secured upon the other end of the block, the'contact element 14 terminating in a lamp socket 15 into which may be screwed a light bulb 16. -Wires 17, 18, 19 and 20 form the circuit for the telephone, thecircuit being closed in a well known way by the receiver hook 21 when the receiver is removed from the hook. A button' 22 of insulating material is secured upon the contact element 14 by means of which the element 14 may be pressed inwardly to break contact between the point 13 and the element 14. A' wire 23 connects th'econtact 13 with the wire 20, andthe wire 20 is connected-at 24 to the side of the socket 15 with which,the' screw threads on the bulb 16 make contact in a well known manner. An overhanging hood protects the bulb 10 from acci ental inur J In operation the operator removes the receiver from the hook 21 to close circuit through the wires 17, 18,-19 and 20. When so closed with the element 14 in contact with the contact point 13 the circuit passes through the wires 20, 23, contact point 13, element 14 and wire 19, in which case the light bulb 16 is short circuited, and hence is not lighted. The

operator then pushes in the button 22 to break. contact between the element 14 and the point 13 to cut out the short circuit, causing the circuit to be closed through the wire 20, point 24, element 14 and wire 19 to light the bulb 16 to illuminate the dial. The operator may then manipulate the dial to call his number. After having completed dialling the button 22 is released so that the element 14 again contacts with 13 to short circuit the light 16. The lamp 16 therefore will be burning only when the operator is actually dialling.

It should be observed that the current normally carried by the wires 17, 18, 19 and 20 when telephoning is ample to light the bulb 16 which preferably is such a bulb as is used for example in a small flash light.

It will be obvious to those skilled in the artxthat various changes may be made in mv device without departing from the spirit of I the invention, and I, therefore, do not limit myself to what is shown in the drawings and described'in the specification, but only as set forth in the appended claims.

Having thus fully described mysaid invention, what I claim as new and desire to secure by Letters Patent, isi

1. In a dial telephone system, the combination with atelephone base of a dial mounted thereon, a body portion mounted on said base provided with an overhanging hood, a block mounted beneath said hood in said body having a light bulb therein, means for normally short circuiting the said light, and manually'operable means for cutting out'the 35 said short circuiting means, substantially as set forth.

' 2. In a dial telephone system, the combination of a tele' hone provided with a bod portion and a Base secured thereto, a dia' mounted on said base, an overhanging hood on said body portion, an electric circuit connecting said dial and a lamp under said hood connected in said circuit, means operable upon operationof thetelephone for short circuiting the said lamp and manually operable means for cuttin out'the short circuit, substantially as set forth.

3. In a dial tele hone system the combination of a telephone hody portion having a base nme GENEVIEVE YOUNG HITT. 

